It's MLK Day here in the US, a federal holiday. Karsh photographed him in 1962, a year prior to the March on Washington. "This portrait was taken under the most difficult conditions. We had very little time, and the only place available was a corner of Mr King's church. Nowhere could he relax when he was constantly beset by friends and aides wishing him well, commiserating on his difficulties...planning new strategy. What emerged in my mind and, I trust, in the portrait, was the dedication of the man and his clear vision of ultimate victory."

Martin Luther King, 1962 © Yousuf Karsh